Παραπομπή σε μορφή APA (7η εκδ.)

(2000). Persistence & Attainment of First-Year College Dropouts. U.S. Department of Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Persistence & Attainment of First-Year College Dropouts. U.S. Department of Education, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Persistence & Attainment of First-Year College Dropouts. U.S. Department of Education, 2000.